Feel free to ask me anything on today's Great Wall tour.
关于今天的长城之行，有什么不懂的地方尽管问我吧。
How long is the wall?
长城有多长？
Ah, the most popular question! If we're only talking about the parts from the Ming Dynasty,
呃，这是问的最多的一个问题！如果我们只是谈论从明朝开始修建的这一部分，
it's about 8,850 kilometers long. This makes it the longest wall in the world.
它大概有8850公里长。从长度上来说，它是世界上最长的城墙。
Wow, that's amazing! Why did the ancient emperors build the wall?
真奇妙！为什么古代皇帝要建造长城呢？
The main reason was to protect their part of the country. As you can see, it's quite tall and wide.
主要原因是要保护国家的领土。你也可以看见，长城很高很宽。
As far as I know, there are no man-made objects as big as this.
据我所知，世界上还没有建筑能和长城一样宏伟。
Is Badaling part of the Ming Great Wall?
八达岭长城属于明长城吗？
Yes, it's most famous part.
是的，它是最有名的一段长城。
